Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Suborder Heteroptera - True Bugs
Representative Images
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Synonyms and other taxonomic changes
Formerly treated as a separate order called Hemiptera or Heteroptera; now considered a part of the re-defined order Hemiptera
Numbers
7 infraorders, with ca. 3850 spp. in ~680 genera of 45 families north of Mexico(1) and >42,000 spp. in almost 6,000 genera of ~90 families worldwide(2); there are >420 spp. of aquatic and semi-aquatic bugs in our area and close to 6,000 spp. worldwide(3)
Infraorder Cimicomorpha: terrestrial; ~20,600 spp. in >2,700 genera worldwide; 7 superfamilies (one monotypic superfamily is restricted to se. Mediterranean):
Infraorder Pentatomomorpha: terrestrial, mostly herbivorous; worldwide, >16,200 spp. in >2,600 genera of 42 families; 6 superfamilies (one superfamily of 2 tiny families is restricted to Australia and so. South America):
Aradoidea: families Aradidae + a small termitophilous family, mostly Neotropical
General identification manuals: (5)(6) • keys to [semi]aquatic bugs in (7)(8)(9)(10)(11) • easy online key to families in (12) • many good keys in (13)
Range
Worldwide
Habitat
infraorders Nepomorpha, Gerromorpha, and Leptopodomorpha (the latter with few exceptions) are entirely composed of aquatic, semiaquatic, or shore bugs; the remaining groups are entirely terrestrial and occupy a wide variety of habitats
Food
most species feed on plant juices, many are predators, some are mixed feeders, a few are parasites (blood-sucking)
Remarks
Some are considered agricultural or household pests; info on economically important spp. in (14)
How to tell a bug from a beetle: If antenna has 4‒5 segments, then it's a bug; beetles (with very few exceptions) have at least 8, usually 11 antennomeres. Beetles have pinching jaws (mandibles); bugs, piercing, sucking mouthparts usually folded back against the underside.
Biodiversity of the Heteroptera Henry T.J. 2009. In: Foottit R.G., Adler P.H., eds. Insect biodiversity: Science and society. Oxford: Wiley-Blackwell: 223−263.